SC CHEM 102 - Enzyme Catalysis (4 pages)

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Enzyme Catalysis

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Enzyme Catalysis


An overview of Chaoter 2, Lecture 7 notes

Lecture number:
Lecture Note
University Of South Carolina-Columbia
Chem 102 - Fundamental Chemistry Ii

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CHEM 102 2nd Chapter Lecture 7 Outline of Last Lecture I Kinetics a Definition II Rate a Definition b Equation III Collision Theory a Definition b Three thing that must happen for a reaction to occur c Activation Energy d Activated Complex IV Catalysis a Definition Outline of Current Lecture I Enzyme Catalysis a Definition II Chemical Equilibrium a Definition b Explanation III Acids and Bases a Definitions b Weak vs Strong Acids These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute c Properties of Bases and Acids IV pH a Definition b How to calculate it and molarity V Buffers a Definition Current Lecture Enzyme Catalysis Enzyme Catalysis large molecules called macromolecules which catalyze specific biochemical They increase the rates of reactions by factors as large as 10 to the 14 th Very specific in the reactions they catalyze Very reactive in very mild reaction conditions Chemical Equilibrium Chemical Equilibrium A state in which the rates of the forward and reverse reactions are equal It does not mean that both the reactions are equal During a Chemical Equilibrium Reaction the reaction starts going from left to right but then switches directions The reaction will go back and forth for a while until the forces from the reaction going in opposite directions offsets each other and the reaction doesn t move in either direction IT DOES NOT STOP IT IS JUST OFFSET BY THE OPPOSITE FORCES COLLIDING The principle of Le Chantelier Any change to a chemical reaction at equilibrium causes the reaction to proceed in the direction that reduces the effects of the change in other words if we do something to upset equilibrium the direction of the reaction will change to offset the upset If you add something to the product of a reaction equation the direction will change to go towards the reactant and vice versa Acids and Bases Acid A substance that releases H ions when dissolved in

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